The calendar (date) on a wristwatch is generally adjusted by pulling the crown out one click.
Some models and expensive products have a type that allows you to push the button to change the date.
Typical examples include Omega's Speedmaster (Cal.3330) and Tiffany's Atlasgent chronograph model.
This is a push-type calendar adjustment model.
How to change the date
1. Just like a normal watchDate change prohibited time period(8pm to 4am).
Please adjust your time to 6 o'clock. (This is because morning and afternoon dates are not prohibited from changing.)
2. There is a small indentation on the side of the watch at the 50 minute position, so press it with a pointed object to change the date.
3.The date is1 day before the actual datePlease adjust accordingly. When you pull the crown to set the time,
When the date changes, it will be midnight, so please pay attention to the morning and afternoon and set it to the current time.
Finally, push in the crown and you are done.